The equation of a transverse wave is given by
`y=10 sin pi (0.01 x -2t )`
where x and y are in cm and t is in second. Its frequency is

Options

A. `10s^(-1)`
B. `2s^(-1)`
C. `1s^(-1)`
D. `0.0s^(-1)`

Answer

C

Explanation

Comparing with the standard equation
`y=A sin (k x -omega t)`, we have
`omega =2pi `rad/s
Frequency `n=(omega)/(2pi)=(2pi)/(2pi)=1s^(-1)`
`impliesn=1s^(-1)`